Car-roof



R. W. BURNETT.

l CAR Roof.

APPLICATION FILED FEB. 91 1918.

1 35 1 ,4 1 1 i f Patented Aug. 31, 192I).

guna/dio@ 55 shows these ends lmpdtogether as at iJNiTED amiss." IPATENT(OFFICE,

Y RICHARD WEBB BUnivnT'i?,Y 0F ALisAixIY,4 NEW vYoan.' j

j CABfnOoF.-

peculiar construction of rooting sheets which with the carlines form athoroughweatherproof means and are practically self-supporting.V Anotherfeature of the invention is the means for further weatherproo'fing thejoint between the rooiing sheets and at the same time preventingabrasivey actionv between the carlines and roofing sheets.-A Otherfeatures reside in the novelfarrangement and combination of parts, morefully hereinafter described.

In the drawings: e s Figure 1 is a fragmentary sectional side elevationthrough the car roof;

.Fig 2 is a fragmentary perspective view of the roofing sheets; 'Y

Fig. 3 is a similar view showing modified construction.

A isthe carline of inverted channel or U- shaped cross section, havingthe outwardlyextending flanges, A and B are the roofing sheets extendingfrom eaves tov eavesjand provided on their opposite edges withv thelarranged within,V the channels of the carline. AThe adjacent upstandingflanges B upstanding flangesV of the adjacent `roofing sheets are formedwith the portions and Cf returnbent in thel same direction and nested,the free ends of the returnbends being adjacent to each other. Thisarrangement will cause any moisture blown along the sheets beneath thecarline and up the vsheet iianges to be deflected away fromthe jointinstead of being forcedthereinto. v

For the purpose of making the roofing sheets practicallyself-supporting, the free ends of the returnbendsC and C are securedtion. f

y 4; In a .car roof, the combination .with anv inverted. channelcarline, of load sustaining. L .roofingv sheets extending from eaves tokeaves` to each other, so that the stress upon the sheet having the lowerreturnbend C willbfe.'

carried into the sheet having the upper returnbend C. In other words,the construction is such that'the sheets work together to carry vtheload npon either' or both. Fig.

v Specification of Letters Patent.l Patented ugrl, ApplcationledFebruary 91918. SerialNo. 216,177?. i Y l I 'i D, while Fig. 3l showsthem riveted to-` :gether as atE. y

For furtherweatherprooiing the joint'be- .tween the roolingsheets and atthe same `.time for preventing abrasive action between the carlineand-roofing s heets in their rel- .ative movements, I provide anon-abrasive material F, preferably a stripoffeltbetween LYthefcarl-ineandrooing sheets, and extending continuouslyfrom oneedge of the carlineto the 'oppositeedgeL With this arrange-` Y v ment, any moisture thatenters between the v.

carline and the non-abrasive materiall can not reach the joint betweenthe roofing.

sheets. Y j

W hat I claim as my invention, is; x

l. In a carV roof, the combination with an invertedVchannel-shaped'member, of load sustaining roofing sheets supported atspacedl points and arranged beneath` said inverted.

channel-shaped member and havingfup.-`

free edges. l

2. In a car roof, 'the vcombination with ing roofing sheets extendingfrom eaves to eaves of the carroof, said roofing sheets arranged beneathsaid carline and having a ostandingflanges adjacentV to eachother, theyv upper portions of said'flangesbeing returnbent rin the same direction,nested and secured toeach other at approximately the aninVertedchannelcarline, of load sustain- Y the free ends of said return-bends being Ycrimpedtogether atthe edges.. y s l 3. 'In a car roof, the combinationwith an inverted channel-shaped member, of load` sustaining'roofingshe'ets supported at spacedf pointsa'nd arranged' beneath. saidinverted channel-shaped member and having ,up

standing flanges adjacentjto each other, the Y upper portions of saidflanges'beingreturnbent in the same direction and nested, and meanssecuring said flanges'toeach other atv approximately the* free edgesso-thatftheV stress upon'the sheet havingl the lowerre-vy 1 i .turn-bentportion 'will be transmitted into vl l the sheet having Ythe upperreturn-bent porofthe car roof,fsaid roofing sheets being ar- .standing,flanges adjacent SQ'eah-Qth'enthe Y I upper portions oi" said flangesbeing returnbentV in the same direction, nested and secured to eachother near their edges, and a Vstrip of feltA between said carline androofing sheets, extending` continuously fromi one edge i the carhne tothe opposite edge thereof.

5. In a car roof, the combination of load sustaining 'roofing sheetsvsupported near -their opposite ends, said sheets provided withupstanding flanges ad]acent to each other having their upper portionsreturneither sheet will Vbe transmitted into the 6. VIn a car roof, thecombination Withan inverted channel-shaped member, ofrooing sheetsarranged therebeneath Vand having upstanding flanges adjacent to eachother, the upper portions of said flanges bein y return-bent in the samedirection and neste" and means for securing the edges of said flanges toeach other at spaeed'polnts.

7. In arcarY roof, the combination with an inverted channel-shapedmember, of'roofing sheets arranged therebeneath and having upstandingflanges adjacentv to'each other, the upper portions of said flangesbeing returnebent in the same direction and nested,

and separate or displaced indentations 'near the" edgesof said flangesfor vsecuring the same to each other. Y n testimony whereof I afiX mysignature.

RICHARD WEBB BURNETT.

